Are red onions vegetables?

Red onions, along with all other onions, are classified as vegetables.

While some people may consider them to be fruits due to their edible seeds, the botanical definition of a fruit is the mature ovary of a flowering plant that contains seeds. Onions do not fit this definition, as they are bulbs rather than flowers.

However, onions do have some properties that are more commonly associated with fruits. For example, they contain natural sugars and are high in vitamin C, both of which are typical characteristics of fruit. Additionally, red onions have a relatively mild and sweet taste compared to other vegetables, making them a popular addition to many fruit-based recipes.